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Research on Embedded Network Real-Time Video Monitoring System Based on Zynq
Yang Nie,Xiaofei Yin,Yu Hu,Hanbin Xu,Ruofei Yan 보안공학연구지원센터 2016 International Journal of Future Generation Communi Vol.9 No.11
With the improvement of the performance of the embedded processor, the real-time network video monitoring system based on embedded technology becomes a developing direction of the network video with its low price and portability. In this paper, software and hardware co-design method is adopted to design an embedded system. ARM of the Zynq chip is responsible for embedded system structures and high definition video processing, and FPGA is used to design other logic and hardware expansion. Compared with the traditional network video monitoring technology, the embedded network video monitoring technology based on Zynq not only improves the quality of the image, but also has better real-time performance and scalability.
Ductile crack initiation evaluation in stiffened steel bridge piers under cyclic loading
Wataru Fujie,Miki Taguchi,Lan Kang,Hanbin Ge,Bin Xu 국제구조공학회 2020 Steel and Composite Structures, An International J Vol.36 No.4
Although detailed shell analysis is suitable to predict the ductile crack initiation life of steel members, such detailed method adds time expense and complexity. In order to simply predict the ductile crack initiation life of stiffened steel bridge piers, a total of 33 cases are simulated to carry out the parametric analyses. In the analysis, the effects of the width-to-thickness ratio, slenderness ratio, plate thickness and so on are considered. Both shell analyses and beam analyses about these 33 cases are conducted. The plastic strain and damage index obtained from shell and beam analyses are compared. The modified factor βs is determined based on the predicted results obtained from both shell and beam analyses in order to simulate the strain concentration at the base corner of the steel bridge piers. Finally, three experimental results are employed to verify the validity of the proposed method in this study.